Blasting machining apparatus using abrasive particles like powder

Abstract

A blasting machining apparatus for blasting a workpiece by using fine abrasive particles. The blasting machining apparatus includes a first arm for supplying the workpiece onto a table provided in a blasting chamber and discharging the workpiece after being blasted out of the blasting chamber and a second arm for supplying the workpiece after being blasted and discharged out of the blasting chamber into a washing unit and discharging the work after being washed out of the washing unit. The first arm and the second arm are independent of each other. Accordingly, after washing the workpiece, washer liquid attached to the second arm does not fall into the blasting chamber, thereby ensuring stable blasting of the workpiece in the blasting chamber.

What is claimed is: 
     
       1. A blasting machining apparatus using abrasive particles having a particle size of less than 50 μm for blasting a surface of an object, comprising: a blasting chamber in which an object is blasted by said abrasive particles;   a nozzle provided in said blasting chamber for supplying said abrasive particles to said object;   a table provided in said blasting chamber for placing said object thereon;   washing means provided adjacent to said blasting chamber for washing said object after being blasted;   first carrier means moveable into and out of said blasting chamber for supplying said object to be blasted onto said table in said blasting chamber and discharging said object after being blasted out of said blasting chamber to a position outside of said blasting chamber; and   second carrier means independent of said first carrier means and moveable between said outside position and said washing means for supplying said object after being blasted and discharged out of said blasting chamber into said washing means and discharging said object after being washed back out of said washing means, wherein said first carrier means does not contact said object after it has been washed and said second carrier means does not contact said blasting chamber.   
     
     
       2. The blasting machine apparatus as defined in claim 1, wherein said first carrier means comprises a horizontally movable beam extending between and over said blasting chamber and said washing means, a first arm vertically movably mounted on said beam, and a first chuck mounted at a lower end of said first arm for gripping said object to be supplied into and to be discharged out of said blasting chamber; and said second carrier means comprises said beam, a second arm vertically movably mounted on said beam, and a second chuck mounted at a lower end of said second arm for gripping said object to be supplied into and to be discharged out of said washing means. 
     
     
       3. The blasting machining apparatus as defined in claim 1, further comprising means for moving said table in X, Y and Z directions perpendicular to one another, thereby adjusting said work on said table in three-dimensional position. 
     
     
       4. The blasting machining apparatus as defined in claim 1, further comprising a housing to be sealed for accommodating said blasting chamber, said washing means, said first carrier means and said second carrier means.